We are excited to announce the launch of our new forums! You can access it forums.aavso.org. For questions, please see our blog post. The forums at aavso.org/forum have become read-only.
Announcement: New Applications
We are excited to announce the launch of our new applications! We're opening up early access to our new applications for searching, downloading, and submitting photometric observations. You can now access these applications through these links:
We ask for your feedback in order to help us improve these applications. Please send feedback for the applications above to feedback@aavso.org. Note: please avoid duplicating submissions across the two submit applications.
Indeed, it is very exciting. RX And was very cooperative in my first observation of it. I will observe it again on October 10th if the weather is good, but I may have missed the peak brightness.
Great work, and the stability of the brightness may indicate that the brightness will start to decline. I will continue to monitor to see what happens over the days.
I just uploaded obs from a while ago as I have only just managed to learn how to calibrate and this was interesting to see.
Although they are only single obs (Stack of three) this star seems to be active. They seem to compare favourably with other observers although my errors are large as this is near my limit. They're not transformed as I'm having trouble with that.
RX AND 2460319.31991 2024 Jan. 09.81991 13.861 0.029 V
RX AND 2460319.31843 2024 Jan. 09.81843 14.283 0.027 B
RX AND 2460319.30382 2024 Jan. 09.80382 14.007 0.027 V
RX AND 2460325.35024 2024 Jan. 15.85024 12.000 0.024 B
RX AND 2460325.34747 2024 Jan. 15.84747 11.879 0.007 V
RX AND 2460328.33917 2024 Jan. 18.83917 13.777 0.024 V
RX AND 2460328.33300 2024 Jan. 18.83300 14.068 0.025 B
RX AND 2460336.29435 2024 Jan. 26.79435 11.725 0.033 B
RX AND 2460336.29970 2024 Jan. 26.79970 11.630 0.035 V
Your reported errors are reasonable. You should expect a few hundredths as normal magnitude error for repeated analyses. Observers who report a few millimag error are almost certainly just using one image and one comp and therefore reporting the 1/SNR error. That is the error that is unrealistic!
Ken
PS: Do a quick web search on RX AND and wikipedia will tell you about the activity of this UGZ star. Obviously, the LC tells you that as well. You indicated that your results match 'favourably'?
You're only one click away from transforming in TA once you use the Time Series Photometry analysis rather than Single Image Photometry.
Looking for…
Hi,
Looking for interesting CVs I did 2 series on the last days in V and plan to observe it tomorrow 11 Oct.
Glad something intriguing is happening.
Kind regards,
Nikola
Hi Nikola,
Indeed, it is very exciting. RX And was very cooperative in my first observation of it. I will observe it again on October 10th if the weather is good, but I may have missed the peak brightness.
Best regards,
Khalid
Hi Khalid,
Just saw your observations. Looks like it's getting interesting. I'm going to do a series in V tonight, Oct 11, to see what happens.
I wanted to be able to run it in B and V (not only in V), but most probably I won't have that opportunity today for technical reasons.
Regards,
Nikola
Last night I managed to do a 2 hour series of RX And.
The star has really increased its brightness dramatically.
Interestingly, when there is an outburst, the light curve is stable and does not change. I got almost a straight line around 10.8 mag.
I am sharing two light curves I got 5 days apart for comparison:
Well done, Khalid!
Truly outstanding work
Great work, and the stability of the brightness may indicate that the brightness will start to decline. I will continue to monitor to see what happens over the days.
Thank you, Nicola
Hi,
I uploaded the data I acquired last week. It helps fill in the decline if the light curve a bit.
Darrell Lee
LDRB
I just uploaded obs from a while ago as I have only just managed to learn how to calibrate and this was interesting to see.
Although they are only single obs (Stack of three) this star seems to be active. They seem to compare favourably with other observers although my errors are large as this is near my limit. They're not transformed as I'm having trouble with that.
RX AND 2460319.31991 2024 Jan. 09.81991 13.861 0.029 V
RX AND 2460319.31843 2024 Jan. 09.81843 14.283 0.027 B
RX AND 2460319.30382 2024 Jan. 09.80382 14.007 0.027 V
RX AND 2460325.35024 2024 Jan. 15.85024 12.000 0.024 B
RX AND 2460325.34747 2024 Jan. 15.84747 11.879 0.007 V
RX AND 2460328.33917 2024 Jan. 18.83917 13.777 0.024 V
RX AND 2460328.33300 2024 Jan. 18.83300 14.068 0.025 B
RX AND 2460336.29435 2024 Jan. 26.79435 11.725 0.033 B
RX AND 2460336.29970 2024 Jan. 26.79970 11.630 0.035 V
Is this quite an active star?
Comments welcome. Always looking to improve.
Kevin:
Your reported errors are reasonable. You should expect a few hundredths as normal magnitude error for repeated analyses. Observers who report a few millimag error are almost certainly just using one image and one comp and therefore reporting the 1/SNR error. That is the error that is unrealistic!
Ken
PS: Do a quick web search on RX AND and wikipedia will tell you about the activity of this UGZ star. Obviously, the LC tells you that as well. You indicated that your results match 'favourably'?
You're only one click away from transforming in TA once you use the Time Series Photometry analysis rather than Single Image Photometry.